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Electrocardiographic alterations in diphtheria


Electrocardiographic abnormalities in five cases of diphtheria have been described. The abnormalities found were grade I and Wanckebach’s A-V block, low voltage QRS, partial or complete left bundle branch block, premature beats and an infarction-like pattern. It is observed that the prognosis of myocarditis is not necessarily bad even in the presence of electrocardiographic abnormalities.

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Correspondence to J. C. Sachdev.

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From the Medical College, Simla.

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Sachdev, J.C., Puri, D. Electrocardiographic alterations in diphtheria. Indian J Pediatr 34, 429–431 (1967).

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  • Myocarditis
  • Diphtheria
  • Left Bundle Branch Block
  • Downward Shift
  • Complete Heart Block